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Adult mouse liver following benzo(a)pyrene (BaP) treatment: miRNA and mRNa profiling

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Mus musculus Rattus norvegicus Human gammaherpesvirus 8 JC polyomavirus Betapolyomavirus macacae Human immunodeficiency virus 1 Murid gammaherpesvirus 4 Homo sapiens Human betaherpesvirus 5 Human alphaherpesvirus 1 Betapolyomavirus hominis human gammaherpesvirus 4 Murid betaherpesvirus 1

PROVIDER: GSE18841 | GEO | 2010/10/18

SECONDARY ACCESSION(S): PRJNA121177

REPOSITORIES: GEO

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Adult mouse liver following benzo(a)pyrene (BaP) treatment: miRNA and mRNa profiling

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2010-10-18 | E-GEOD-18841 | biostudies-arrayexpress

MicroRNA expression profiling in adult mouse liver following benzo(a)pyrene (BaP) treatment [Agilent miRNA array]

Project description:Lack of change in microRNA expression in adult mouse liver following treatment with benzo(a)pyrene (BaP), as detected using Agilent miRNA arrays. We have investigated the effect of exposure to 150 mg/kg benzo(a)pyrene (BaP) for 3 days on mRNA and miRNA expression levels in adult mouse liver. We used Agilent miRNA array platforms to assess effects of BaP exposure on miRNA expression levels. Our results indicate a distinct lack of effect of BaP of miRNA expression, despite widespread changes in mRNA levels. Keywords: Toxicology, miRNA

2010-10-18 | GSE18786 | GEO

MicroRNA expression profiling in adult mouse liver following benzo(a)pyrene (BaP) treatment [Exiqon miRNA array]

2010-10-18 | GSE18782 | GEO

mRNA expression profiling in adult mouse liver following benzo(a)pyrene (BaP) treatment [Agilent gene expression array]

2010-10-18 | GSE18789 | GEO

MicroRNA expression profiling in adult mouse liver following benzo(a)pyrene (BaP) treatment [Exiqon miRNA array]

Project description:Lack of change in microRNA expression in adult mouse liver following treatment with benzo(a)pyrene (BaP), as detected using Exiqon miRNA arrays. Adult male mice were exposed to 150 mg/kg benzo(a)pyrene (BaP) or solvent for 3 days and sampled 4 hours after the last dose. MicroRNA expression levels in adult mouse liver were measured using Exiqon miRNA arrays. Our results indicate a distinct lack of effect of BaP of miRNA expression, despite widespread changes in mRNA levels (measured using Agilent arrays). Lack of miRNA changes was confirmed with Agilent miRNA arrays. Keywords: Toxicology, miRNA Adult male B6C3F1 mice were exposed to a daily dose of corn oil (vehicle control group) or 150 mg/kg BaP (treatment group) for 3 d (n=6 per group). Mice were sacrificed at 4 h or 24 h following the last dose and liver lobes were extracted and flash frozen. Exiqon miRNA arrays were used to examine changes in miRNA transcript levels in random liver lobe sections.

2010-10-18 | E-GEOD-18782 | biostudies-arrayexpress

mRNA expression profiling in adult mouse liver following benzo(a)pyrene (BaP) treatment [Agilent gene expression array]

Project description:Adult male mice were exposed to 150 mg/kg benzo(a)pyrene (BaP) or solvent for 3 days and sampled 4 or 24 hours after the last dose. mRNA expression levels in adult mouse liver were measured using Agilent arrays. We found widespread changes in mRNA in pathways consistent with known response (xenobiotic metabolism, glutathione). We also found that BaP caused changes in the circadian rhythm pathway. We measured miRNA changes in the same samples and found no evidence for any change in transcription of miRNA as a result of the exposure. Keywords: Toxicology, time course Adult male B6C3F1 mice were exposed to a daily dose of corn oil (vehicle control group) or 150 mg/kg BaP (treatment group) for 3 days (n=5 per group). Mice were sacrificed at 4 h or 24 h following the last dose and liver lobes were extracted and flash frozen. RNA was extracted from median liver lobes and hybridized to the Agilent 4 x 44K mouse DNA arrays using a randomized block design.

2010-10-18 | E-GEOD-18789 | biostudies-arrayexpress

Reference: MicroRNA expression profiling in adult mouse liver following BaP treatment [Agilent miRNA array]

2010-10-28 | GSE19438 | GEO

Toxicogenomics and phenotypic characterization of adult male zebrafish liver treated with benzo-[A]-pyrene (BAP)

Project description:We performed microarray-based expression profiling on liver of male zebrafish exposed to 5, 50, and 500 µg/L of benzo-[A]-pyrene (BAP) for 24 and 96 hours, to identify global transcriptional programs and biological pathways involved in BAP-induced adaptive responses under in vivo environment.

2012-01-01 | GSE30035 | GEO

RNA-Sequencing identifies differentially expressed genes in adult male tilapia following low Benzo (a) Pyrene (BaP) exposure

Project description:Purpose: The objective of this study was to identifiy if a low dose of BaP would alter gene expression profiles and key pathways in the liver and testis of adult male tilapia Methods: The liver and testis tissue from the BaP-treated or control groups fish were collected and then total RNA was extracted, RNA integrity (RIN) was evaluated (RIN >7) for Illumina RNA-Seq library construction and Sequencing. Gene read mapping was performed with TopHat and differential expression analysis (DE) was conducted using exact test with R package EdgeR (p < 0.05; fold change > ± 1.5 were considered as significant). Pathway analysis was performed using the gene set enrichment analysis (GSEA) and subnetwork enrichment analysis (SNEA) applying the Mann-Whitney test with an alpha level of p < 0.05 to identify the biological mechanism that underlie the BaP effects in male tilapia. Results: RNA-Seq analysis using EdgeR showed a larger number of altered genes in liver than in testis as a result of BaP exposure. In liver, 1444 genes were significantly differentially expressed, while in the testis only 309 showed any changes using a p < 0.05 and fold change > ± 1.5 Conclusions: Low dose of BaP can alter genes and molecular pathways in the liver and testis in male adult tilapia, and these changes could be associated with biological endpoints disruption.

2018-07-06 | GSE116687 | GEO

Reference: MicroRNA expression profiling in adult mouse liver following BaP treatment [Agilent miRNA array]

Project description:We have investigated the effect of exposure to 150 mg/kg benzo(a)pyrene (BaP) for 3 days on mRNA and miRNA expression levels in adult mouse liver. We used Agilent miRNA array platforms to assess effects of BaP exposure on miRNA expression levels. Our results indicate a distinct lack of effect of BaP of miRNA expression, despite widespread changes in mRNA levels. The data in the attached array files were used a positive control for the Agilent platform, to indicate that the platform was able to detect significant differences in abundance of miRNA between two samples with great differences in miRNA content. Keywords: Toxicology, miRNA Two reference pools were created from commercially available reference RNA (FirstChoice® mouse Total RNA including the small fraction (Catalogue # AM7800-AM7828, Ambion, Streetsville, ON)). Reference #1 contained equal parts of mouse testicle, ovary and 10-12 day embryo. Reference #2 contained liver, heart and lung. These references were hybridized to a single mouse Agilent 8x15K miRNA array (4 replicates each), normalized by cyclic lowess and analysed with MAANOVA to find differences in the samples.One reference #1 sample was not included in the analysis because it did not pass Agilent quality control metrics.

2010-10-28 | E-GEOD-19438 | biostudies-arrayexpress

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